diff --git a/app/views/wechats/login.html.erb b/app/views/wechats/login.html.erb
index f3fa64a56..32b70d1e2 100644
--- a/app/views/wechats/login.html.erb
+++ b/app/views/wechats/login.html.erb
@@ -7,14 +7,13 @@
   <link rel="stylesheet" href="/stylesheets/weui/weui.min.css"/>
   <script type="text/javascript" charset="utf-8" src="/javascripts/jquery.min.js" />
   <%= csrf_meta_tag %>
-  <%= javascript_tag "var AUTH_TOKEN = '#{form_authenticity_token}';" if protect_against_forgery? %>
 
   <script type="text/javascript">
     $(function(){
       $("#submitForm").click(function(){
         $.ajax({
           type: "POST",
-          url: $(this).parent("form").attr("action") + "?&authenticity_token=" + AUTH_TOKEN,
+          url: $(this).parent("form").attr("action") + "?&authenticity_token=" + <%=form_authenticity_token%>,
           data:$(this).parent("form").serialize(),
           dataType: "json"
         });